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Home Backend Development PHP Tutorial 怎么实现在select中选完以后在下一级select自动显示和上一级相关的数据行

怎么实现在select中选完以后在下一级select自动显示和上一级相关的数据行

Jun 20, 2016 pm 12:37 PM

ajax不太懂,怎么把选完第一级select的选项提交给PHP处理


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参考: http://blog.chinaunix.net/uid-7254998-id-145002.html


例子里的action为空,新手是肯定不知道问题出在哪里的。。。

对啊,我把例子里面的全复制到一个php文件里没成功,form的action我要填到另一个处理页面,我想一点第一个下拉列表就根据选的值无刷新改变第二个列表的选项。

使用 jq 就很简单

<?phpif($_SERVER['REQUEST_METHOD'] == "POST") {  $d = array(    array(1,2,3,4),    array(11,12,13,14),    array(21,22,23,24),    array(31,32,33,34),    array(41,42,43,44),  );  foreach($d[$_POST['s1']] as $v) echo "<option value=$v>$v</option>";  exit;}?><script src=scripts/jquery-1.8.3.min.js></script><script>$(function() {  $('#s1').load(location.href, {s1 : 0});  $('#s1').change(function() {    $(this).next().load(location.href, {s1:$(this).val()});  });});</script><select name=s1 id=s1></select><select name=s2 id=s2></select>
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